Synology RX6022sas, Hardware Installation Manual, Page: 30 / 38

30 Chapter 3: System Maintenance
Replace Power Supply Unit (PSU)
If a PSU or its fan malfunctions, please follow the steps below to replace the malfunctioning PSU.
1
Unplug the power cord from the PSU that is to be replaced.
Note: By pressing the Beep Off button, you can silence the long beep when it sounds.
2
Remove the malfunctioning PSU:
1
On the rear panel, push the lever of the PSU inward as shown.
2
Pull the PSU out of your RX6022sas.
3 Prepare a new PSU. Insert it into the empty slot until you hear a click.